My first mobile phone had a retractable antenna you had to pull out before making a call. That was 20 years ago. Only this year did I learn that it was a con. The "antenna" was a useless piece of plastic, only to give the user the illusion of having some impact on the phone's operation. The real antenna was fixed.

__________________In particle accelerators atoms are indeed not only touching each others. But banging together in a massive explosive orgasm.
-- nieldk in a TMO post